new helper: current_pt_regs()

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Normally (and that's the default) it's just task_pt_regs(current).
However, if an architecture can optimize that, it can do so by
making a macro of its own available from asm/ptrace.h.  More
importantly, some architectures have task_pt_regs() working only
for traced tasks blocked on signal delivery.  current_pt_regs()
needs to work for *all* processes, so before those architectures
start using stuff relying on current_pt_regs() they'll need a
properly working variant.

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>

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Al Viro 2012-09-30 13:12:36 -04:00

parent 2aa3a7f866

commit a3460a5974

1 changed files with 4 additions and 0 deletions

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include/linux/ptrace.h

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